Finding the Fourth Proportional to 2,111.49, 3,166.41 and 724.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,111.49 : 3,166.41 = 724.56 : x
2. Step 2: Convert to fraction form
   2,111.49/3,166.41 = 724.56/x
3. Step 3: Cross multiply
   2,111.49x = 3,166.41 × 724.56
4. Step 4: Simplify right side
   2,111.49x = 2,294,254.03
5. Step 5: Solve for x
   x = 2,294,254.03/2,111.49
6. Step 6: Final answer
   x = 1,086.56